Manas Chakra

The Tantric Lower Forehead Centre,
called the Manas ("Mind") Chakra, is said to have six petals, which although
normally white assume the colours of the senses when they operate (according
to the Indian systems, in addition to the five physical senses, there is
"mind" constitutes the sixth sense, which is not the same as Clairvoyance
or "Sixth Sense"), and is black during sleep (unconsciousness). Despite
the overlap, the Manas chakra is not the same as the Manas tattwa.
It is associated with chitta, which represents consciousness or psyche
in general, or even the subconscious and memory.